I'd say they fall into four categories: Poster design, Illustration, Storytelling and Live Scribing during virtual meetings.
1) Poster design
Process: This is an ongoing dialogue usually over a couple of weeks (depending on the number of stakeholders). First I am briefed on what you want to communicate, I then come up with a draft sketch and we normally have 2 iterations on top of the initial sketch, and after that I draw up the final image.
These were for research projects for various health and social care organisations - they showed the progress made and learnings.
And this one for a 10 year anniversary celebration:
This was to advertise an organisation's purpose and available services: